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DNS update

By noorazman ·
I am running 2 dns server. I want 2ndary server to get update from the primary server. My primary dns is on linux and put fwbuilder for easy iptables administration. What kind a rules should I put so that the 2ndary server able to get update from the primary server ?
May be the rules look like this ??

source dest protocol Action
2ndary? Primary 53-TCP? or Accept
or Any? 53-UDP?

Please help. This easy for expert.

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DNS update

by r00ki In reply to DNS update

53 TCP is for Zone Transfer, 53 UDP is for your client DNS queries. So allow 53 tcp to transfer the update.

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